Antimicrobial hot melt adhesive
AssigneeBostik Findley, Inc.
InventorsLacretia Svenningsen, Diane Strelow, Mark Alper, Marihelen Hoppa-Willbrandt
Life of this patent
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Abstract
Hot melt adhesive compositions suitable for a variety of applications, especially in nonwoven disposable articles, are prepared by blending various adhesive components with a bacteriostat. The bacteriostat is incorporated into the adhesive compositions in sufficient amounts to inhibit the growth of various microorganisms, particularly bacteria. The preferred bacteriostat is triclosan in amounts of 0.01% to 5% by weight.
Claims54
An antimicrobial hot melt adhesive composition, comprising a blend of the following components:
- about 10-80% of a polymer;
- about 20-70% of a tackifying resin;
- about 0-50% of a plasticizer;
- about 0-50% of a wax;
- about 0.1-5% of an antioxidant;
- and
- about 0.01-5% of a bacteriostat, the components totaling 100% by weight, and said bacteriostat comprising a compound of the formula:
- wherein X1 is a member selected from the group consisting of chlorine and bromine, X2 is a member selected from the group consisting of chlorine and bromine, and X3 is a member selected from the group consisting of hydrogen and chlorine.
An antimicrobial hot melt adhesive composition, comprising a blend of the following components;
- about 20-35% of a polymer;
- about 35-60% of a tackifying resin;
- about 5-40% of a plasticizer;
- about 0-50% of a wax;
- about 1% of an antioxidant;
- and
- about 0.3-2% of a bacteriostat;
- the components totaling 100% by weight;
- and
- said bacteriostat comprising a compound of the formula:
- wherein X1 is a member selected from the group consisting of chlorine and bromine, X2 is a member selected from the group consisting of chlorine and bromine, and X3 is a member selected from the group consisting of hydrogen and chlorine.
An antimicrobial, sprayable, thermoplastic polymer composition, comprising:
- about 95-99.99% by weight of a thermoplastic polymer, said thermoplastic polymer having a melt index greater than about 100;
- and
- about 0.01-5% by weight of a bacteriostat;
- and where the composition has a viscosity of less than about 50,000 cP at 350° F.
Dependencies are inferred from the claim text.